java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:03:58,800 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:03:58,802 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:03:58,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:03:58,816 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:03:58,817 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:03:58,818 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:03:58,820 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:03:58,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:03:58,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:03:58,823 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 21:03:58,847 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 21:03:58,857 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:03:58,857 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:03:58,858 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:03:58,858 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:03:58,858 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:03:58,858 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:03:58,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:03:58,859 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:03:58,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:03:58,860 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:03:58,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:03:58,860 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:03:58,860 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:03:58,861 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:03:58,861 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:03:58,920 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:03:58,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:03:58,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:03:58,944 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:03:58,945 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:03:58,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-12 21:03:58,946 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl' [2018-10-12 21:03:59,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:03:59,030 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:03:59,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:03:59,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:03:59,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:03:59,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... [2018-10-12 21:03:59,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:03:59,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:03:59,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:03:59,083 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:03:59,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-12 21:03:59,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:03:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:03:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:03:59,661 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:03:59,662 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:03:59 BoogieIcfgContainer [2018-10-12 21:03:59,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:03:59,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:03:59,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:03:59,666 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:03:59,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:03:59" (1/2) ... [2018-10-12 21:03:59,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6525696f and model type lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:03:59, skipping insertion in model container [2018-10-12 21:03:59,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:03:59" (2/2) ... [2018-10-12 21:03:59,670 INFO L112 eAbstractionObserver]: Analyzing ICFG lis-alloca_true-valid-memsafety_true-termination.i_7.bpl [2018-10-12 21:03:59,679 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:03:59,687 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:03:59,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:03:59,731 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:03:59,732 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:03:59,732 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:03:59,732 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:03:59,732 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:03:59,732 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:03:59,733 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:03:59,733 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:03:59,733 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:03:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-10-12 21:03:59,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-10-12 21:03:59,763 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:03:59,764 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:03:59,765 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:03:59,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:03:59,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1251502483, now seen corresponding path program 1 times [2018-10-12 21:03:59,820 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:03:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:04:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:04:00,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:04:00,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-12 21:04:00,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-12 21:04:00,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-12 21:04:00,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-12 21:04:00,229 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 6 states. [2018-10-12 21:04:00,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:04:00,628 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-10-12 21:04:00,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-12 21:04:00,630 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-10-12 21:04:00,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:04:00,645 INFO L225 Difference]: With dead ends: 100 [2018-10-12 21:04:00,645 INFO L226 Difference]: Without dead ends: 100 [2018-10-12 21:04:00,647 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-12 21:04:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-10-12 21:04:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 82. [2018-10-12 21:04:00,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-12 21:04:00,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-10-12 21:04:00,693 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 61 [2018-10-12 21:04:00,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:04:00,694 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-10-12 21:04:00,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-12 21:04:00,695 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-10-12 21:04:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-12 21:04:00,698 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:04:00,698 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:04:00,698 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:04:00,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:04:00,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1035232861, now seen corresponding path program 1 times [2018-10-12 21:04:00,700 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:04:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:04:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:04:00,969 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:04:00,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-10-12 21:04:00,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-12 21:04:00,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-12 21:04:00,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-12 21:04:00,972 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 7 states. [2018-10-12 21:04:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:04:01,261 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-10-12 21:04:01,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-12 21:04:01,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2018-10-12 21:04:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:04:01,264 INFO L225 Difference]: With dead ends: 122 [2018-10-12 21:04:01,265 INFO L226 Difference]: Without dead ends: 120 [2018-10-12 21:04:01,266 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-12 21:04:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-10-12 21:04:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2018-10-12 21:04:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-10-12 21:04:01,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-10-12 21:04:01,277 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 81 [2018-10-12 21:04:01,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:04:01,278 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-10-12 21:04:01,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-12 21:04:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-10-12 21:04:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-12 21:04:01,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:04:01,282 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:04:01,282 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:04:01,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:04:01,283 INFO L82 PathProgramCache]: Analyzing trace with hash 397154855, now seen corresponding path program 2 times [2018-10-12 21:04:01,283 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:04:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:04:02,134 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 8 [2018-10-12 21:04:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-12 21:04:02,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:04:02,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-10-12 21:04:02,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-12 21:04:02,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-12 21:04:02,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-10-12 21:04:02,178 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 11 states. [2018-10-12 21:04:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:04:02,705 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-10-12 21:04:02,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 21:04:02,705 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2018-10-12 21:04:02,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:04:02,707 INFO L225 Difference]: With dead ends: 100 [2018-10-12 21:04:02,707 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:04:02,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2018-10-12 21:04:02,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:04:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:04:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:04:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:04:02,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2018-10-12 21:04:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:04:02,710 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:04:02,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-12 21:04:02,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:04:02,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:04:02,716 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:04:02 BoogieIcfgContainer [2018-10-12 21:04:02,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:04:02,717 INFO L168 Benchmark]: Toolchain (without parser) took 3688.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-12 21:04:02,719 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:04:02,720 INFO L168 Benchmark]: Boogie Preprocessor took 51.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:04:02,720 INFO L168 Benchmark]: RCFGBuilder took 579.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-12 21:04:02,721 INFO L168 Benchmark]: TraceAbstraction took 3053.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. [2018-10-12 21:04:02,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 51.50 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 579.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3053.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.6 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 158]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 198 SDtfs, 445 SDslu, 585 SDs, 0 SdLazy, 268 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 64540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 22/23 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-04-02-736.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_7.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-04-02-736.csv Received shutdown request...